SV: SV: SV: Only logic is necessary?

2006-07-10 Thread Lennart Nilsson

You seem to think that evolution (or matter, or the multiverse) must adapt
to a preordained logic. Adjusting, approximately, to a fixed metaphysical
truth. 

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Lennart Nilsson wrote:

 Cooper says that a formalist, with only formal constraints on his logic
 (such as consistensy) is at the mercy of the formalism itself.

Meaning what ? That the formalism might not be giving answers
that are really right ? How would we tell ? using some
other logic ? Or empricial disproof ? But empirical disproof
itself rests on the logical principle of non-contradiction.

The only kind of logic that can be shown to be wrong
is informal logic (e.g. the Wasson Test), which can be shown
to be wrong using formal logic.

 He calls for a relativistic
 evolutionary logic where classical logic only would be justified for
certain
 special classes of problems. An evolutionary metatheory of logic would
 recognize which those problems are.

And would itself be ineveitably based on some kind of logic.





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Re: SV: SV: SV: Only logic is necessary?

2006-07-10 Thread 1Z


Lennart Nilsson wrote:
 You seem to think that evolution (or matter, or the multiverse) must adapt
 to a preordained logic.

No, no , noo !

I am trying to get away from the idea that logic needs to
be propped up by some external authority. The validity
of logic comes about from the lack of any basis
to criticise it that doesn't presuppose it. That's
epistemology, not metaphysics.


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